• Wildlife photographers
• Wildlife film and documentary makers
• Sound men
• Ornithologists
• Sound effect engineers
• Wildlife lovers
• Medical centers (for children with impaired memory)
• Hunters (Be careful ! The bird call is not authorised everywhere; contact your hunting federation)

Before using a bird call, it is recommended to get some experience with bird songs.
We have already seen birds fall from their trees on their backs and burst out of laughing in front of an inexperienced bird call user.